Home / 742,846.36-1,025,152.50-420,549.88

Finding the Fourth Proportional to 742,846.36, 1,025,152.50 and 420,549.88

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Solution

The fourth proportional to 742,846.36, 1,025,152.50 and 420,549.88 is: 580,372.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,846.36 : 1,025,152.50 = 420,549.88 : x
  2. Step 2: Convert to fraction form
    742,846.36/1,025,152.50 = 420,549.88/x
  3. Step 3: Cross multiply
    742,846.36x = 1,025,152.50 × 420,549.88
  4. Step 4: Simplify right side
    742,846.36x = 431,127,760,856.70
  5. Step 5: Solve for x
    x = 431,127,760,856.70/742,846.36
  6. Step 6: Final answer
    x = 580,372.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.